Unless I am horribly mistaken, using Firefox is an intentional choice by a vanishing group of people. If you are just a little bit less careful or determined, you would likely be using chrome or a chrome variant, definitely not Firefox. These users are choosing a browser that has slightly worse performance, has fewer features (e.g. WebUSB) and is seeing more problems with Cloudflare/Google captcha every day. All of this for better adblocking and full control of the browser.
Why would they want AI?